Dual density filter cartridge
    4.
    发明授权
    Dual density filter cartridge 有权
    双密度滤芯

    公开(公告)号:US06692637B2

    公开(公告)日:2004-02-17

    申请号:US10037260

    申请日:2001-11-07

    IPC分类号: A01K6304

    CPC分类号: A01K63/045

    摘要: The invention relates to aquarium filters providing improved water filtration without accelerated clogging. The present invention also relates to methods of using such filters.

    摘要翻译: 本发明涉及一种提供改进的水过滤而不加速堵塞的水族箱过滤器。 本发明还涉及使用这种过滤器的方法。